Myocarditis

Myocarditis is inflammation of the heart.

General

Grossing:

Requires 10 sections to exclude;^[1] sections should include right ventricle and left ventricle.
- It is often missed with five.^[2]

Features:

Classified by the inflammatory cells present:^[4]

Eosinophilic - hypersensitivity myocarditis - most common.
- May be assoc. with peripheral blood eosinophilia.^[5]
Lymphocytic - viral, autoimmune.
Granulomatous - infectious, idiopathic.
Neutrophilic.
Reperfusion (associated with myocardial infarction).

↑ KC. 1 October 2010.
↑ Kubo, N.; Morimoto, S.; Hiramitsu, S.; Uemura, A.; Kimura, K.; Shimizu, K.; Hishida, H. (1997). "Feasibility of diagnosing chronic myocarditis by endomyocardial biopsy.". Heart Vessels 12 (4): 167-70. PMID 9559966.
↑ Baughman, KL. (Jan 2006). "Diagnosis of myocarditis: death of Dallas criteria.". Circulation 113 (4): 593-5. doi:10.1161/CIRCULATIONAHA.105.589663. PMID 16449736.
↑ http://emedicine.medscape.com/article/1612533-overview
↑ ^5.0 ^5.1 Amini R, Nielsen C (2010). "Eosinophilic myocarditis mimicking acute coronary syndrome secondary to idiopathic hypereosinophilic syndrome: a case report". J Med Case Reports 4: 40. doi:10.1186/1752-1947-4-40. PMC 2830978. PMID 20181108. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2830978/.